Alaska earthquakes

M1.5 earthquake 16 km SW of Susitna, Alaska

A magnitude 1.5 earthquake struck 16 km SW of Susitna, Alaska on Tue, Sep 21, 2021, 8:23 AM AKDT (16:23 UTC), 48 km (30 mi) below the surface.

A larger quake followed: M3.4 15 km WSW of Willow, Alaska. This one was a foreshock.

Point MacKenzie forecastMore in Alaska

Map

Where this earthquake was located, with the others nearby. Select one for its page.

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The earthquake

Magnitude
1.5 (ml), micro
Local time
UTC
2021-09-21 16:23:34 UTC
Depth
47.6 km (29.6 mi), shallow
Epicenter
61.447° N, 150.738° W
Region
Alaska
Tsunami flag
No
Status
Reviewed by a seismologist

Did you feel it?

No one has reported feeling this quake to the USGS.

How well it is located

Reviewed by a seismologist.

Stations used
26

Nearest places

Distance and direction from each place to the epicenter, with its forecast.

Nearby

Within 100 km, magnitude 1.5 and up: at least 201 in the 60 days after this one and 135 in the 30 days before it.

After

  1. 2.314 km WNW of Nikiski, Alaska · 1831 days ago · 71 km deep · 87 km away
  2. 1.57 km NW of Skwentna, Alaska · 1831 days ago · 82 km deep · 77 km away
  3. 1.930 km NW of Susitna, Alaska · 1831 days ago · 62 km deep · 34 km away
  4. 2.27 km SSE of Elmendorf Air Force Base, Alaska · 1830 days ago · 31 km deep · 69 km away · felt by 1
  5. 1.638 km SSW of Skwentna, Alaska · 1830 days ago · 82 km deep · 57 km away
  6. 1.526 km NW of Beluga, Alaska · 1830 days ago · 71 km deep · 40 km away
  7. 2.142 km WNW of Tyonek, Alaska · 1830 days ago · 98 km deep · 70 km away
  8. 1.75 km NNE of Susitna, Alaska · 1830 days ago · 54 km deep · 21 km away
  9. 2.27 km SSW of Point MacKenzie, Alaska · 1830 days ago · 27 km deep · 41 km away · felt by 1
  10. 1.656 km NW of Beluga, Alaska · 1829 days ago · 89 km deep · 60 km away
  11. 1.612 km N of Fishhook, Alaska · 1829 days ago · 9 km deep · 92 km away
  12. 1.86 km SSW of Willow, Alaska · 1829 days ago · 40 km deep · 44 km away
  13. 1.59 km SW of Big Lake, Alaska · 1829 days ago · 40 km deep · 35 km away
  14. 1.89 km SW of Point MacKenzie, Alaska · 1829 days ago · 48 km deep · 39 km away
  15. 1.511 km S of Willow, Alaska · 1829 days ago · 42 km deep · 43 km away
  16. 2.010 km SW of Trapper Creek, Alaska · 1829 days ago · 58 km deep · 92 km away
  17. 1.89 km NNW of Big Lake, Alaska · 1828 days ago · 44 km deep · 40 km away
  18. 2.225 km WNW of Nikiski, Alaska · 1828 days ago · 76 km deep · 93 km away
  19. 1.812 km SW of Point MacKenzie, Alaska · 1828 days ago · 3 km deep · 39 km away
  20. 1.729 km NNW of Susitna, Alaska · 1828 days ago · 61 km deep · 37 km away
  21. 3.21 km NNE of Point MacKenzie, Alaska · 1828 days ago · 43 km deep · 42 km away · felt by 18
  22. 1.931 km WNW of Susitna, Alaska · 1828 days ago · 71 km deep · 25 km away
  23. 2.42 km WSW of Point MacKenzie, Alaska · 1828 days ago · 37 km deep · 40 km away · felt by 1
  24. 2.130 km SSW of Skwentna, Alaska · 1827 days ago · 71 km deep · 56 km away
  25. 1.642 km SW of Skwentna, Alaska · 1827 days ago · 103 km deep · 73 km away
  26. 2.76 km WSW of Meadow Lakes, Alaska · 1827 days ago · 19 km deep · 57 km away · felt by 3
  27. 1.617 km ENE of Willow, Alaska · 1827 days ago · 39 km deep · 66 km away
  28. 1.514 km W of Point Possession, Alaska · 1826 days ago · 20 km deep · 58 km away
  29. 2.26 km E of Nikiski, Alaska · 1826 days ago · 59 km deep · 87 km away
  30. 1.529 km N of Beluga, Alaska · 1826 days ago · 15 km deep · 23 km away
  31. 1.626 km NW of Willow, Alaska · 1825 days ago · 59 km deep · 54 km away
  32. 1.522 km N of Beluga, Alaska · 1825 days ago · 59 km deep · 20 km away
  33. 2.928 km SSW of Skwentna, Alaska · 1825 days ago · 92 km deep · 61 km away
  34. 1.812 km WSW of Big Lake, Alaska · 1825 days ago · 43 km deep · 31 km away
  35. 2.15 km WNW of Fishhook, Alaska · 1825 days ago · 20 km deep · 83 km away
  36. 1.824 km WNW of Susitna, Alaska · 1825 days ago · 62 km deep · 25 km away
  37. 1.927 km NW of Susitna, Alaska · 1824 days ago · 47 km deep · 33 km away
  38. 1.611 km NE of Willow, Alaska · 1824 days ago · 22 km deep · 61 km away
  39. 1.638 km S of Skwentna, Alaska · 1824 days ago · 80 km deep · 38 km away
  40. 3.026 km WSW of Trapper Creek, Alaska · 1824 days ago · 0 km deep · 84 km away · felt by 2
  41. 1.542 km SW of Skwentna, Alaska · 1824 days ago · 102 km deep · 71 km away
  42. 1.539 km SW of Skwentna, Alaska · 1824 days ago · 115 km deep · 76 km away
  43. 1.665 km W of Tyonek, Alaska · 1823 days ago · 111 km deep · 98 km away
  44. 2.06 km E of Hope, Alaska · 1823 days ago · 30 km deep · 87 km away
  45. 1.515 km S of Susitna North, Alaska · 1823 days ago · 35 km deep · 78 km away
  46. 2.17 km NNE of Big Lake, Alaska · 1822 days ago · 33 km deep · 47 km away · felt by 1
  47. 1.847 km S of Skwentna, Alaska · 1822 days ago · 70 km deep · 41 km away
  48. 1.559 km SSW of Skwentna, Alaska · 1822 days ago · 8 km deep · 68 km away
  49. 1.61 km SSE of Big Lake, Alaska · 1822 days ago · 35 km deep · 43 km away
  50. 2.019 km S of Susitna North, Alaska · 1821 days ago · 40 km deep · 77 km away
  51. 2.117 km NW of Skwentna, Alaska · 1821 days ago · 96 km deep · 87 km away
  52. 1.623 km NNW of Beluga, Alaska · 1821 days ago · 75 km deep · 26 km away
  53. 1.736 km S of Skwentna, Alaska · 1821 days ago · 80 km deep · 40 km away
  54. 1.825 km WSW of Point MacKenzie, Alaska · 1821 days ago · 45 km deep · 23 km away
  55. 1.619 km ENE of Nikiski, Alaska · 1821 days ago · 25 km deep · 76 km away
  56. 1.924 km ESE of Skwentna, Alaska · 1821 days ago · 64 km deep · 50 km away
  57. 1.650 km WNW of Tyonek, Alaska · 1821 days ago · 93 km deep · 73 km away
  58. 2.665 km WNW of Beluga, Alaska · 1821 days ago · 136 km deep · 79 km away
  59. 1.545 km WSW of Tyonek, Alaska · 1821 days ago · 78 km deep · 85 km away
  60. 1.611 km NW of Beluga, Alaska · 1821 days ago · 68 km deep · 37 km away

The first 60 of at least 201.

Before

  1. 1.70 km NNE of Elmendorf Air Force Base, Alaska · 1831 days ago · 29 km deep · 63 km away
  2. 2.00 km SSE of Elmendorf Air Force Base, Alaska · 1831 days ago · 28 km deep · 63 km away
  3. 2.66 km NW of Point MacKenzie, Alaska · 1832 days ago · 14 km deep · 36 km away
  4. 1.64 km SSW of Trapper Creek, Alaska · 1832 days ago · 10 km deep · 96 km away
  5. 1.80 km ENE of Beluga, Alaska · 1832 days ago · 59 km deep · 39 km away
  6. 1.761 km SSW of Skwentna, Alaska · 1832 days ago · 9 km deep · 67 km away
  7. 1.815 km WNW of Fishhook, Alaska · 1833 days ago · 37 km deep · 78 km away
  8. 1.527 km NW of Beluga, Alaska · 1834 days ago · 65 km deep · 39 km away
  9. 1.619 km NNW of Sterling, Alaska · 1834 days ago · 52 km deep · 83 km away
  10. 1.98 km NNE of Susitna, Alaska · 1834 days ago · 26 km deep · 24 km away
  11. 1.911 km NNE of Meadow Lakes, Alaska · 1834 days ago · 30 km deep · 70 km away
  12. 1.622 km NW of Susitna, Alaska · 1834 days ago · 48 km deep · 26 km away
  13. 1.66 km NW of Susitna, Alaska · 1835 days ago · 31 km deep · 17 km away
  14. 1.930 km WSW of Point MacKenzie, Alaska · 1835 days ago · 36 km deep · 29 km away
  15. 1.672 km WNW of Tyonek, Alaska · 1835 days ago · 119 km deep · 90 km away
  16. 1.531 km NNW of Susitna, Alaska · 1835 days ago · 57 km deep · 39 km away
  17. 2.22 km ESE of Point MacKenzie, Alaska · 1835 days ago · 40 km deep · 44 km away
  18. 3.237 km NW of Beluga, Alaska · 1836 days ago · 86 km deep · 40 km away · felt by 1
  19. 1.82 km WNW of Point MacKenzie, Alaska · 1836 days ago · 41 km deep · 39 km away
  20. 1.819 km ENE of Sterling, Alaska · 1836 days ago · 19 km deep · 98 km away · felt by 1

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event ak021c4vjk64. Read Sat, Sep 26, 2026, 7:49 PM UTC.